Phaldipika Chapter 13 Part 6
20) When ever in transit lagnesh, moon and moon sign lord is well transit and aspected by natural beneficial planet that period is good for person and brings growth and fortune.
21) If lagnesh has very good strength and aspected by natural beneficial planet but not aspected by natural malefic and placed in kendra house then it can be able to destroy many sort of arist yog and native will be long lived with good fortune, prosperity and best qualities.
22) If Jupiter, the Minister of Gods, possessed of great strength and with
brilliant rays be posited in Lagna, he can singly ward off many of the evils which otherwise would be difficult to overcome, just as a humble salutation placed with all sincerity before lord Vishnu demolishes all evils.
23)If the birth be in bright half of the lunar month (Shukla Paksha) and the Moon be posited in 1st, 4th, 5th, 7th, 9th, 10th or the 11th in Cancer, Leo,
Sagittarius or Pisces Navamsa, many evils endangering life of the native are demolished and the birth becomes very auspicious due to his best karma.
24) If in the birth horoscope, their are no malefic in kendra, trikona and the 8th house and the lord of lagna and Jupiter posited in kendra, the native performs virtuous actions, enjoys all kinds of happiness and remains in good health with a life span of 100 years.
25)Through the Dasas enunciated by Spripati, through Ashtakavarga,
through Kalachakra Dasa and through the Vimsottari Dasa system, a Wise man have to predict the longevity of the native by following suitable rules after a correct calculation of several planetary positions, careful working.