Relationship of all kinds are like sand held in your hand.

Held loosely, with an open hand, the sand remains where it is.

The minute you close your hand and squeeze tightly to hold on, the sand trckles through your fingers.

You may hold onto some of it, but most will be spilled.

A relationship of like that. Hild loosely, with respect and freedom for all other person, it is likely to remain intact. But hold too tightly, too possessively, and the relationship slips away and is lost.