I have been learning about the concept of ameru from a book by Takeo Doi called The Anatomy of Dependence. Ameru is described as a feeling of trusting a caregiver to allow one to indulge in receiving care (I am using my own paraphrasing here). The author notes how he found it very difficult to relate this concept to existing terms in English, let alone American culture. With an emphasis on a rugged independence, Americans apparently don't have an equivalent concept of being the passive love object of someone else. In fact, the closest I can come to here is the notion of intergenerational responsibility, as when the younger generation blames the older for all of society's current ills. The assumption is that the older generation is truly responsible for creating a world that the young now have to inherit. This also reminds me of Parker Palmer's concept of the "luxury" of being a student who can stand aside an critique a teacher's plan, with the comfort of knowing they don't need to design a plan themselves!
Ameru probably most comes out in Christian culture. Jesus has been compared to a lamb, and the lamb is perhaps considered to be a symbol of docility and total submission or surrender. It's true that North American society tends to associate this kind of submission to either weakness or oppression. However, without a proper sense of trust or surrender, we lack the ability to devote ourselves to something that we deem higher and worthy of our respect. This is the basis for much of our religious worship. We even lack the "childlike" surrender that we sometimes read about in the Bible:
Truly, I say to you, unless you turn and become like children, you will never enter the kingdom of heaven. (Matthew 18: 1-3).
I personally don't think that ameru translates very well in the context of North American relationships. When it does, the person who practices it needs to take it with a grain of salt: not being totally dependent on someone else, but perhaps practicing ameru as a form of giving rather than receiving. During our study group today, one of the participants related how, when taking care of his Alzheimer's suffering mother, he came to the epiphany that actually he needed her, rather than the other way around. This changed the way he approached care. He became much more responsive to his mother, and more capable of seeing all the ways in which caring was meaningful to him. We can practice ameru not necessarily with the expectation of "being cared for", but more as a gesture of a general trust that the world is a caring place as long as we remain open to come what may.