Why do we pass the database client in the context

Hey there 👋 In the examples and in T3app we pass the db client in the trpc context

export async function createContextInner(opts?: CreateInnerContextOptions) {
  return {
    prisma,
    session: opts.session,
  };
}

export async function createContextInner(opts?: CreateInnerContextOptions) {
  return {
    prisma,
    session: opts.session,
  };
}

then, to make requests to the db we use it from the context such as ctx.prisma.whatever.create() I would like to understand why do we do so. Why no just import the client and use it such as import { prisma } from "~/server/db"; and then in the router use prisma.whatever.create() without the ctx. Why is it used from the context? What are the benefits? does it really matter?

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