by Master Chu-hung

Unborn Mind
Mind is basically unborn: it is born when causal conditions come together. Mind basically does not die: it dies when causal conditions disperse. There seems to be birth and death, but fundamentaly there is no going or coming.
If you can understand this, then you will be at peace through birth and death - ever still, ever aware.
If you cannot yet understand this, then you must wholly abandon your personal existence, and continuously recite the phrase "Amitabha Buddha," and seek birth in the Pure Land.

Recite the Buddha-name several times, turn the light around and observe yourself:

Be a lamp unto your own feet; Do do not seek outside yourself.

Shakyamuni Buddha

Contemplation
You came asking about such matters as reining the functioning of the mind, doing contemplation when sitting and when standing, and contemplating the concept and image of buddha. All these practices are carried out according to the occasion: there is no fixed rule.
But to contemplate impermanence all the time is not something that can be done by those who have not finished with sensory entaglements. Even though you cannot contemplate constantly, this is still valid meditative work for you.
Admidst sensory entanglements, the method of contemplation is hard to perfect. It would be better when you have time off from your studies and from family business to silently recite the buddha-name. What's important is that every syllable be clear and distinct, that every repitition be intimately taken to heart. Then mind will rein itself in.
If you do this for a long time without giving up, stable concentration will be achieved: this is contemplation.

Master Chu-hung, reply to a letter

Finding Lost Mind When thoughts arise, it is not necessary to do anything else to annihilate them: just put your attention on the words "Amitabha Buddha" and keep it there with all your strenght. This is the meditative work of gathering mind. Suddenly you will awaken: this is called "finding mind." Master Chu-hung

Question of a student to the master: When one takes off one's headgear and loosens one's clothing, when one lies in the bath, or when one is relieving oneself. At such times should one recite the Buddha-name or not?

Master Chu-hung: Silent recitation of the Buddha-name is alright at such times.

Question of a student to the master: Suppose there are two people. One eats meat but does not neglect the Buddha-name. One is a vegetarian but never recites the Buddha-name. Which is better?

Master Chu-hung: Both are defective. The one who recites the Buddha-name is a little better, better than the one who does not know that Buddha exists.