The essence of Buddhadharma has always been the same throughout infinite time and space - no matter what plane of existence that it is found, no matter what language that it is taught in, and no matter what culture that holds it - the essence has always, and will always be the same.
All the pure phenomena of nirvana and impure phenomena of samsara - whatever there might be - are merely appearances arising to one’s own mind. All the phenomena of samsara and nirvana are like this; there is not a single phenomenon in samsara or nirvana that is not like this, and which exists from its own side.
Tulku Tsultrim Zangpo
The teachings of the Dharma have great power, but unless you practice them properly that power will remain merely as a potential which is never expressed. If one has a tool and does not use it, not much will be accomplished. An unused tool is not particularly beneficial in itself. But if you truly put the teachings into practice, as the Dharma takes birth in and grows in your mindstream, all your faults will naturally diminish and all your positive qualities will spontaneously blossom, just as the sun, as it rises higher in the morning, gradually spreads increasing light throughout the world.
Dilgo Khyentse Rinpoche
The experience of the tantric yogi is like this:
The outer world is seen as a sacred mandala circle,
And all living beings seen as divine beings.
All experiences become transformed
Into blissful primordial awareness;
And all of one's actions become spiritual,
Regardless of how they conventionally appear.
Every sound that one makes
Becomes part of a great cosmic song.
The Second Dalai Lama