Mesha Lagna — Sun-Moon Mutual Rajayoga
मेषलग्ने तु जातस्य चन्द्रसूर्यौ परस्परम् ।
सम्बन्धेन प्रकुर्वीतां राजयोगं न संशयः ॥ १ ॥
For a person born in Aries (Mesha) ascendant, a mutual relationship (conjunction, mutual aspect, or exchange) between the 4th lord Moon and 5th lord Sun undoubtedly creates a supreme Rajayoga.
Vrishabha Lagna — Saturn as Exception to Yogakaraka
वृषभलग्ने तु जातस्य मन्दो योगप्रदो न हि ।
नवमेशोऽपि मन्देषो न करोति शुभं स्वतः ॥ २ ॥
For one born in Taurus (Vrishabha) ascendant, Saturn does not automatically function as an unconditional Yogakaraka despite owning the 9th trine and 10th quadrant without supportive associations.