We must see first the Rasi, then Vimsamsa, and if the Rasi don't show some spirituality, we must not touch uselessly the Vimsamsa.
The Sun being the natural karaka for Atma, we must see the relationship of Sun with Lagna/ Lagna lord in Rasi.
1.Sun must be in Lagna (or with unobstructed argala on Lagna, I think, as I've said already) or in kendra or trikona from the Lagna Lord;
2.If those combinations don't exist, we must see if another planet links by aspect, lordship, conjunction etc.If we worship that planet we get into spirituality.
If these yogas don't exist, and Sun is badly placed from the places indicated, then only a relation of Jupiter with Lagna/Lagna lord can give spirituality through a Guru.But the religion of his country/ community of birth is shown by Sun, and if Sun is badly placed, the native can reject his own religion and take to other faith.Those who did this, they had this combinations in theirs charts.
I'm a such a case, myself, because I'm born in a Christian family, but I had adopted the Vedic ancient Truths (although I'm not initiated yet, in a authentic vedic spiritual school).
If even this link's don't exist, we must see from Chara Atmakaraka planet, instead of the lagna lord.
These theachings are from the students of Sanjay Rath.I've adopted these teachings because I've seen that they works.
In the given chart, the Sun has argala on Lagna, but is defeated in Graha Yuddha by Saturn.Moon, the Lagna lord and CharaKaraka planet, is not in kendra or trikona from Sun.Mercury is the dispositor of Jupiter and is with Sun and in Rasi Drishti with Moon, but I don't think that this native has tried to worship Sri Visnu (Mercury) or another deity who is shown by Mercury.Who will do that, if is a ignorant/ indifferent person?
Marian