If we have a desire, one which we wish to come but do not know how to directly manifest, the only way for it to come is to let go of it completely after having held it and made it aware of desire. If you do not let go of it, meaning, stop holding it in your mind stop desiring it consciously, it can never return to you in physical terms.
Letting go is the only way to allow things to do their work. If you hold on tightly, it cannot move from its' position. It can never go do the work you so desire. This is how we attract. Desire clearly, and let go. In time, it will arrive.
May this be as helpful as possible.