If you let go a little you will have a little happiness. If you let go a lot you will have a lot of happiness. If you let go completely you will be free.
Living in the moment means letting go of the past and not waiting for the future. It means living your life consciously, aware that each moment you breathe is a gift.
The most intelligent men, like the strongest, find their happiness where others would find only disaster: in the labyrinth, in being hard with themselves and with others, in effort; their delight is self-mastery; in them asceticism becomes second nature, a necessity, as instinct.
If Allah has written for you happiness, no one can steal that from you, and if He has written for your heart to break, then no-one can mend it but He, so always put your trust in Allah.
Those who have little interest in spirituality shouldn’t think that human inner values don’t apply to you. The inner peace of an alert and calm mind are the source of real happiness and good health. Our human intelligence tells us which of our emotions are positive and helpful and which are damaging and to be restrained or avoided.