Generally speaking, we feel attachment to our family, to our belongings, and to our position, and aversion to anyone who hurts or threatens us. Try turning your attention away from such external objects and examine the mind that identifies them as desirable or hateful. Do your desire and anger have any form, color, substance, or location? If not, why is it that you fall so easily under the power of such feelings?
It is because you do not know how to set them free. If you allow your thoughts and feelings to arise and dissolve by themselves, they will pass through your mind in the same way as a bird flies through the sky, without leaving any trace. This applies not only to attachment and anger, but also to the experiences of meditation—bliss, clarity, and the absence of thought.
These experiences result from perseverance in practice and are the expression of the inherent creativity of the mind. They appear like a rainbow, formed as the rays of the sun strike a curtain of rain; and to become attached to them is as futile as it would be to run after a rainbow in the hopes of wearing it as a coat. Simply allow your thoughts and experiences to come and go, without ever grasping at them.
~ Dilgo Khyentse Rinpoche