CF. merge into the background / sink into the background / recede into the background
CF.  position in which sb/sth is not important/noticed | VERB + BACKGROUND
▷ blend into, fade into, melt/merge into, recede/retreat into, slip into the background:
- The dispute over the new contract allowed her other problems to fade into the background.
- He had learnt how to melt invisibly into the background.
▷ keep/remain/stay in the background:
- He prefers to remain in the background and let his assistant deal with the press.
▷ hover in the background:
- I could see my secretary hovering in the background.
.... Oxford Collocation Dic for Students of English
the background noun [S] ▷If someone or something is in the background, they are not the main point of attention:
- Her worries about her job have faded into the background since she learnt about her father's illness.
* * *
 (...) Its name is anxiety. Composed of fear, self-doubt, guilt, dread, and self-reproach, it ties your stomach in knots, makes sweat ooze from your pores, makes your head hurt, your memory blur, and your concentration dissipate. You can't wash it away, will it away, or beat it away. The only way to contain it is to embrace it, to make it your ally and your friend.
1. Although anxiety can unnerve you and make you feel paralyzed, consider its ability to energize you. Watch it carefully, without emotion or judgment distorting your vision, and you will see it raise the hairs on your neck, excite your thought processes, heighten your senses, stir your imagination and make you keenly aware of being alive. (...)
3. Talk to your anxiety as with an old friend. Look at it as your best personal source of camaraderie, loyalty, and friendly support. Let it work for you, not against you and you have not only tamed the beast but have created a more enjoyable and positive environment for yourself. Your self-doubts will always linger but they are at a manageable level where you can calmly push them into the background while you concentrate on making a great self-presentation. (...)
 (...) The so-called poor are not worth a second look in a scenario of exclusion. A similar prejudice affects the reality of death itself as we push its eventuality into the background far too often, mainly because it’s too damn uncomfortable to face. Yet, without a genuine recognition of death as an eventual fact, we fail to retain an authentic embrace of the inevitable. Not only is it vital to come to terms with our own mortality, but it’s also worth it to come to terms with the many who lose their lives in these marginalized conflicts, where human life is mistakenly disposed of much too casually. (...)
 The author suggests that the situation of the only child is in general unfavorable. It is true, there are no other children in the family that can be preferred to him or that can push him into the background. On the other hand, he is threatened with the danger of being thwarted in his development by the excessive love and anxiety of the parents. Above all, he becomes accustomed to his role as autocrat. (...)
 (...) My recommendations are challenging, but necessary. The behaviour and attitude of some of these youngsters can be appalling. There’s a temptation to push them into the background and hope they will go away. But they won’t. If we don’t give them what they need to get their lives on track, we will all pay, via the cost of prisons, mental health services, crime and welfare benefits. If we don’t begin to solve this problem, we will continue to pass it on through the generations.
 (...) They indicate that some dialogue partners they have encountered lament how in dialogue people sometimes feel obliged to push into the background their deepest convictions. I was glad to hear this, since it agrees with my own insight, that both dialogue and the serious study of another religion beg us to go deeper into our own tradition, our faith.
(...) To some extent, it's probably necessary to 'to push into the background [one's] deepest convictions', but that seems a small price to pay for learning, for growing.