4 Bible Verses about Saints, Communion With God

I am in a strait between the two, having the desire to depart and be with Christ, which is far better:

Be anxious about nothing, but in every thing, by prayer and supplication with thanksgiving, let your requests be made known to God:

Let us come, therefore, with boldness, to the throne of grace, that we may receive mercy, and find grace to help in every time of need.

The cup of blessing which we bless, is it not the participation of the blood of the Christ? The bread which we break, is it not the participation of the body of the Christ?