You continuously get carried away by mundane actions.
Don’t you notice that your life is running out?
-- Padmasambhava
+~
+ The key to understanding the truth of suffering is what the Buddha called
+the “three marks” of everything that exists. All conditioned phenomena,
+he said, are pervaded by these three marks: impermanence (anitya),
+dissatisfaction or suffering (duhkha), and insubstantiality (anatman,
+“without self”).
+ According to the Buddha, if we do not understand how conditioned phenomena
+are marked by these three aspects, then we will not be able to understand the
+first Noble Truth. We may do all we can in order to avoid facing the fact
+that everything is contingent and transient—we may try to hide ourselves
+from it, and we may even spin out all kinds of metaphysical theories of an
+unchanging, permanent, substantial reality to avoid this all-pervasive nature
+of ephemerality. Also, if we do not understand that conditioned phenomena are
+unsatisfactory, we will not think about restraining ourselves from
+overindulgence in sensory gratifications, which makes us lose our center and
+become immersed in worldly concerns, so that our life is governed by greed,
+craving, and attachment. All of these things disturb the mind.
+ If we do not understand that everything is insubstantial—anatman—then
+we may believe that there is some kind of enduring essence or substance in
+things, or in the personality, and because of this belief we generate delusion
+and confusion in the mind.
+ -- Traleg Kyabgon, from "The Essence of Buddhism", published by Shambhala
+ Publications