The shell must be cracked apart if what is in it is to come out, for if you want the kernel you must break the shell. And therefore, if you want to discover nature's nakedness, you must destroy its symbols, and the farther you get in the nearer you come to its essence. When you come to the One that gathers all things up into itself, there your soul must stay.

~ Meister Eckhart

Above all, be at ease, be as natural and spacious as possible. Slip quietly out of the noose of your habitual anxious self, release all grasping, and relax into your true nature. Think of your ordinary emotional, thought-ridden self as a block of ice or a slab of butter left out in the sun. If you are feeling hard and cold, let this aggression melt away in the sunlight of your meditation. Let peace work on you and enable you to gather your scattered mind into the mindfulness of Calm Abiding, and awaken in you the awareness and insight of Clear Seeing. And you will find all your negativity disarmed, your aggression dissolved, and your confusion evaporating slowly like mist into the vast and stainless sky of your absolute nature.

~ Sogyal Rinpoche

[The Tibetan Book of Living and Dying]