samādhi-siddhiḥ īśvara-praṇidhānāt

samādhi - putting together; communion; combining; integration

siddhi - accomplishment, performance, fulfilment, attainment, success

īśvara - the lord; the supreme soul; personal god; special self; ruler of choices

praṇidhāna - dedication; respectful conduct; attention; to place down; in front of