Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 10 · Yatra and Omens
यात्रा शकुनाश्च
जललग्नो जलांशो वा जलयोनेः शुभावहः ।मूर्तिः कोशो धन्विनश्च वाहनं मंत्रसंज्ञकम् ॥ ६४७ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 647.
A water sign lagna (rising sign) is good for one going by water. So is a water navamsha (one-ninth part of a sign). From the lagna the houses are: murti (body), kosha (treasury), dhanvin (bowman), vahana (vehicle), mantra (counsel), and so on.
Simple meaning: A water sign is good for water travel. The first five houses are body, treasury, bowman, vehicle and counsel.
शत्रुमार्गस्तथायुश्च मनोव्यापारसंज्ञिकम् ।
Houses 6 to 12 are enemy, road, life, mind, action, gain and no-gain.
घ्नंति क्रूरास्त्र्याप्तिवर्गं भावान्सूर्यमहीसुतौ ।
Bad planets can harm houses except the 3rd and 11th. Good planets help all houses but the 6th.
शुक्रोऽस्तं च न पुष्णाति मूर्तिं मृत्युं च चंद्रमाः ।
Venus does not help the 7th. The Moon does not help the 1st or 8th.