Transit Moon Conjunct Natal Rahu
Moon takes about 29-30 days to traverse all the zodiacs or complete one cycle. Any aspect with transit moon can last about 3 to 4 hours depends on the speed of moon, if we take 1 degree offset from the exact aspect. If we take 1.5 degree offset, then the effects will be there for about 4.5 hours to 6 hours. The maximum of any aspect can last about only 6 hours.
Rahu represents karma from past life, materialistic desire, failures, painful incidents, complexity, nervous system, etc. When transit moon conjunct natal Rahu, you will see failure, bad luck, anxiety and depressions. If you have a weak natal Rahu placement on your chart, you will develop problems related to your mind including bipolar disorder, panic attack, panic episode, phobia, etc. It can happen only if you other Malefic Mars and Saturn is making hard aspects with other natal planets on your chart.
Transit of moon is given paramount importance since it represents the mind. All slow moving planets such as Jupiter, Saturn can exhibit energies through faster moving planet moon only.