Hi Akvan,
But the Buddha’s key interest is to eradicate future suffering, rebirth suffering. No doubt we can validate Tilakkhana against our own life experiences and see how Anicca, Dukkha, Anatta unfold right in front of our very eyes. But if we don’t cultivate dispassion for worldly things, no matter how well we practise in this life, we are going to come back to Kama Loka to ‘enjoy’ sense pleasures over and over again. Each time we come back, for good or for bad, we need to grow old, fall sick, and die. We must see the urgency to adopt this transcendental view and the danger of clinging on to sense pleasures. Seeing rebirth is of utmost paramount importance if one is seriously keen to get out of sansara.