I believe in mapenzi if it means total commitment, giving yourself totally to the chosen one.
Yes I believe in it and as a conscious decision, and the feeling has to come as a result of your decided actions.
I do not believe in the feeling to drive my decisions.
You have to decide to share your life with your spouse, the decision has to be based not on the feelings you have for each other.
The decision is based on knowledge of each other: interests, habits, relatives, friends, priorities etc.
You have to be sure that you want to trust him/her with your life, you let yourself go and include his/her heart in yours.