According to Master Gotsangpa, if one were to explain the condensed essence of the meaning of Mahamudra,

then firstly, since the guru and three jewels are the embodiment of the three roots, you should supplicate them from the depths of your heart. Next, your own root guru, who has come in the form of light, dissolves inseparably into you, and your guru's mind and your own mind become indistinguishably mixed, like pouring water into water. Then rest the mind evenly in its natural state. Whenever you acquire any meditative experience, at all times simply rest the mind, never wishing for better meditation or fearing worse meditation. Most importantly, as stated by the Victor Lord Maitreya, "There is nothing at all to be eradicated. There is not the slightest thing to be posited. Look correctly at reality. If one sees reality, one will become liberated." Rest the mind without grasping at the state of clear light, which is the nature of mind. As for the proper manner of meditation, one should meditate on how all things. whether conventional or ultimate, are themselves empty of intrinsic nature. It is inappropriate to meditate on things being non-empty or truly established. So, one should reject a mentality that grasps at things as non-empty or that grasps at things as truly existent. Accordingly, given the way in which all things are without an objective basis, you should rest in that objectless state, unobscured by the stains of hope or fear which desires bliss and clarity. When the mind moves, allow it to move freely. However, remaining inseparable from the two watchmen of mindfulness and introspection, rest the mind in its natural state. Rest the mind without grasping to anything whatsoever.