Significance
Mangala Trayodashi or Shukla
Trayodashi is the name for the 13th Tithi (lunar day). It's the 13th Tithi of
Shuklapaksha. It's nature is Jaya Prada
or Mangala, which can be interpreted as "one that brings
victory". It's good for following works: Alankar, Pratishta, Agnayadhan,
marriage, travelling, etc., all Manglika
(auspicious).
According to most classical texts Kamadeva
is the one who rules Trayodashi, who's is responsible for forming friendships,
sensual pleasures and gratification and its fulfillment. Kamadeva is also
responsible for human's desires, wishes, passions, pleasure of the senses, the
aesthetic enjoyment of life, affection, love, etc.
Benefits
Being Jaya (that can be translated
as "victory", "advancement") and ruled by Mangala (Mars),
13th Tithi is suitable for following works: war, weapon making, training in
army, collection of army, actions or matters related to power / strength,
travelling, festival, medicine, trades, houses, flags & conch-shell.