but then, 9th house also rules dharma(righteousness), daya(compassion), tapas(penance), guru(teacher) etc.
so is the luck mentioned in astrology material luck or spiritual luck?
or is there any difference between the two?
when 1, 4, 7, 10 and 3, 6, 11 houses are connected to 9th house, there will be material luck
and when 1, 5, 8 and 12 are connected to 9th, there will be spiritual luck.
so how to improve one's luck?
you must have noticed that house no 1 is featuring in both material and spiritual.
1 house happens to be body too.
so, keeping one's temple or body clean and healthy is point no. 1
for improving house no 9, practicing penance, a conscious effort to be righteous and compassionate should surely help.
the 9th lord and the 9th occupying planet can be prayed to.
for eg if it is Sun - we can pray to Sun God(surya) or Siva
for Moon- to Moon Goddess or Parvati
for Kuja(mars) - to Kuja or Lord Subramania or Goddess Bhadrakali based on 9th house being male sign or female sign.
refer www.jyotishkrishna.com remedies and propitiations link.