There is one really remarkable passage in Patisambhidamagga about smiling wisdom (or laughing understanding):
Katamā hāsapaññā? Idhekacco hāsabahulo vedabahulo tuṭṭhibahulo pāmojjabahulo sīlāni paripūretīti – hāsapaññā. Hāsabahulo vedabahulo tuṭṭhibahulo pāmojjabahulo indriyasaṃvaraṃ paripūretīti – hāsapaññā. Hāsabahulo vedabahulo tuṭṭhibahulo pāmojjabahulo bhojane mattaññutaṃ paripūretīti – hāsapaññā. Hāsabahulo vedabahulo tuṭṭhibahulo pāmojjabahulo jāgariyānuyogaṃ paripūretīti – hāsapaññā. Hāsabahulo vedabahulo tuṭṭhibahulo pāmojjabahulo sīlakkhandhaṃ…pe… samādhikkhandhaṃ… paññākkhandhaṃ… vimuttikkhandhaṃ… vimuttiñāṇadassanakkhandhaṃ paripūretīti…pe… ṭhānāṭṭhānāni paṭivijjhatīti… vihārasamāpattiyo paripūretīti … ariyasaccāni paṭivijjhatīti… satipaṭṭhāne bhāvetīti… sammappadhāne bhāvetīti… iddhipāde bhāvetīti… indriyāni bhāvetīti… balāni bhāvetīti… bojjhaṅge bhāvetīti … ariyamaggaṃ bhāvetīti…pe… sāmaññaphalāni sacchikarotīti – hāsapaññā. Hāsabahulo vedabahulo tuṭṭhibahulo pāmojjabahulo abhiññāyo paṭivijjhatīti – hāsapaññā. Hāsabahulo vedabahulo tuṭṭhibahulo pāmojjabahulo paramatthaṃ nibbānaṃ sacchikarotīti – hāsapaññā. Hāsapaññatāya saṃvattantīti – ayaṃ hāsapaññā.
I do not care much for the style of Bhikkhu Ñanamoli's translation, but if you read it with a smile, it should work:
What is laughing understanding (or smiling wisdom)? Here someone with much laughter, blitheness, content and gladness perfects the virtues, thus it is laughing understanding. With much laughter, blitheness, content and gladness he perfects restraint of the faculties, thus it is laughing understanding. With much laughter, blitheness, content and gladness he perffects knowledge of the right amount in eating ... devotion to wakefulness ... the virtue aggregate ... the deliverance aggregate ... the knowledge-and-seeing-of-deliverance aggregate ... penetrates the possibles and impossibles ... perfects the abidings and attainments ... penetrates the noble truths ... develops the foundations of mindfulness ... developes the bases for success ... develops the faculties ... develops the powers, develops the enlightenment factors ... develops the path ... realizes the fruits of ascetism ... penetrates the direct knowledges, thus it is laughing understanding. With much laughter, blitheness, content and gladness he realizes the ultimate meaning, nibbana, thus it is laughing understanding. They lead to a state of laughing understanding: this is laughing understanding.
The point is: laugher, smiles etc. are described as a road to nibbana. You can smile and laugh your way straight into the ultimate goal!
So hey, who needs meditation? Let's have another joke!
